نتایج جستجو برای: a tig

تعداد نتایج: 13432370  

ژورنال: مهندسی متالورژی 2017

در این پژوهش تاثیر حرارت ورودی بر ریزساختار و رفتار مکانیکی در اتصال ورق های نازک آلومینیوم سری 5456 در دو فرآیند جوشکاری قوسی تنگستن_گاز (GTAW) و جوشکاری قوسی فلز_گاز (GMAW) مورد بررسی قرار گرفت. بدین منظور فلز پایه‌ی آلومینیوم با ضخامت 9/0 میلی متر، فلز پرکننده ی ER5356 به قطر 2/1 میلی متر و گاز محافظ آرگون مورد استفاده قرار گرفت. ریزساختار و سطح مقطع شکست بترتیب توسط میکروسکوپ نوری و میکروسک...

Due to special properties such as low density, high strength and high corrosion resistance Ti-6Al-4V alloy has been used extensively in various industries, especially in the aerospace aspects. However the major problem of this alloy is its poor tribological properties under relatively high loads. In the present study, in order to improve the tribological properties of mentioned alloy, chromium ...

Journal: :QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 1985

Journal: :Materials research express 2022

Abstract TIG welded marine grade AA5083-F/ER5356 and AA5083-F/ER5356+Sc joints were friction stir processed with a pin less FSP tool, to explore the impact of process parameters on mechanical metallurgical characteristics weldments enhance weld strength. The microstructure welds was observed using optical SEM subjected tests like toughness, tensile, microhardness fractography, evaluate strength...

2016
Pierre-Emmanuel Gaillardon Ross Walker Sensale Rodriguez

Fin-shaped Field-Effect Transistors} (FinFETs) with Three Independent Gates (TIG) have been recently demonstrated capable of an ultra-steep-slope operation down to 3.4mV/dec. In this paper, we explore their opportunities in the domain of analog design and terahertz detectors. We see that they could result in analog circuits with 25× power efficiency improvement and in THz detectors with 2 order...

Journal: :Düzce Üniversitesi bilim ve teknoloji dergisi 2021

Titanyum alaşımları, üstün özellikleri nedeni ile birçok alanda kullanılmaktadır. Bu alaşımlardan yapılan imalat işlemlerinde veya sonrasında kaynak birleştirme yapılmaktadır. çalışmada birleştirilen Ti6Al4V titanyum alaşımının mikroyapı, sertlik ve asidik ortamdaki korozyon incelenmiştir. Asidik özelliğinin incelenmesinin amacı, kaynaklı alaşımlarından imalatların kimya, petrokimya benzeri ala...

Journal: :Metals 2022

Welds made with 304 austenitic stainless steel play an important role in high-pressure hydrogen storage systems. However, there are few investigations of the effect heat input on embrittlement (HE) tungsten inert gas (TIG) welded steel. In this study, HE TIG is investigated. It was found that increase welding input, ferrite content weld shows a tendency to first and then decrease. From perspect...

Journal: :Cell 2000
Bernd Bukau Elke Deuerling Christine Pfund Elizabeth A Craig

Universitä t Freiburg with the analysis of folding of specific endogenous proteins in mutant strains, these studies have led to signifi-Hermann Herder Str. 7 D-79104 Freiburg cant advances in our understanding of protein folding in the complex cellular milieu. Germany Nascent chains emerging at the peptide exit tunnel of Madison, Wisconsin 53706 the ribosome are awaited by a welcoming committee...

Journal: :IOP Conference Series: Materials Science and Engineering 2016

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